Science group 2 reporting
Effects if Electromagnetic Radiation
Most of the technology used today emit electromagnetic radiation. These radiations can penetrate the human body and the environment
Electromagnetic Radiation and Life
The energy of an electromagnetic radiation is dependent on its frequency, the higher the frequency, the greater the energy of the radiation
E=hf
where E is the energy of an electromagnetic wave,
f is the frequency related to the electromagnetic wave,
and h is the Planck’s Constant which is equal to
6.63×10 ⁻ ³ ⁴ J.s
Electromagnetic radiation may be ionizing or non-ionizing
Ionizing Radiation
⁃ process of removing electrons from neutral atoms
⁃ Exposure to high-level ionizing radiation may cause either an immediate effect or a delayed effect
⁃ •immediate effect can be death or radiation burns, it can also produce molecular changes, delayed effects can be cancer or mutation
if radiation hits the cells of the body it can damage or kill the cells, the amount of energy that the body absorbs from this radiation is called radiation dose (if nasobraan sa radiation dose daghan sells mamatay na naay immediate effect which is death if only a part of the body nasobraan sa radiation dose it could lead to delayed effects ang cells pwede ma repair balik sa iyang healthy form pero pwede pud ni mamali ug repair which can cause cancer)
⁃ includes X-rays and Gamma rays
when our bodies absorb the energy from radiation were being exposed to radiation pero if mag palayo sa source of radiation the exposure stops like in an x ray you are exposed to radiation pero if mag hawa na ka sa x ray dli ka ma contaminated pero if the radiation is in our skin hair and clothes u can be contaminated pero dali lang ni mawala after maligo pero if the radiation is already in our internal organs from needles or inhaling mas lisod siya iremove)
Non-ionizing radiation
⁃ less dangerous than ionizing radiation
but it doesn’t mean na dli ni maka affect sa atong health it still poses health risks, unlike sa ionizing radiation
⁃ does not have enough energy to remove an electron from an atom or molecule
if sa ionizing radiation naa ang x rays and gamma rays ang the rest na forms of electromagnetic waves naa sa non ionizing radiation
⁃ includes radio waves, microwaves, infrared waves, visible light, and uv rays
⁃ •radio waves can interfere with a pacemaker(ang pacemaker kay medical device na naga use ug electrical pulses to help regulate the beating of the heart), overexposure to microwaves is known to cause cataracts(or the clouding of the lens of the eye), excessive exposure to visible light can cause eye damage(sa mga flash sa camera diba after ana kay murag ga black imong pananaw parehas aning lights nato mga seconds ra mag stare ta try daw ninyo diba after ana kay murag naa pa ang shadow sa light ), prolonged exposure to UV rays burns the skin( it causes the skin to tan or become darker it could also cause skin cancer it could also damage the retina)
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